diff --git a/core/data/src/main/kotlin/com/withpeace/withpeace/core/data/repository/DefaultUserRepository.kt b/core/data/src/main/kotlin/com/withpeace/withpeace/core/data/repository/DefaultUserRepository.kt
index 36a02460..dee69fac 100644
--- a/core/data/src/main/kotlin/com/withpeace/withpeace/core/data/repository/DefaultUserRepository.kt
+++ b/core/data/src/main/kotlin/com/withpeace/withpeace/core/data/repository/DefaultUserRepository.kt
@@ -96,7 +96,7 @@ class DefaultUserRepository @Inject constructor(
 
     override fun verifyNicknameDuplicated(
         nickname: Nickname,
-        onError: (WithPeaceError) -> Unit,
+        onError: suspend (WithPeaceError) -> Unit,
     ): Flow<Unit> = flow {
         userService.isNicknameDuplicate(nickname.value).suspendMapSuccess {
             if (this.data) {
diff --git a/core/domain/src/main/java/com/withpeace/withpeace/core/domain/repository/UserRepository.kt b/core/domain/src/main/java/com/withpeace/withpeace/core/domain/repository/UserRepository.kt
index f1fcea13..724992bf 100644
--- a/core/domain/src/main/java/com/withpeace/withpeace/core/domain/repository/UserRepository.kt
+++ b/core/domain/src/main/java/com/withpeace/withpeace/core/domain/repository/UserRepository.kt
@@ -1,7 +1,6 @@
 package com.withpeace.withpeace.core.domain.repository
 
 import com.withpeace.withpeace.core.domain.model.WithPeaceError
-import com.withpeace.withpeace.core.domain.model.profile.ChangingProfileInfo
 import com.withpeace.withpeace.core.domain.model.profile.Nickname
 import com.withpeace.withpeace.core.domain.model.profile.ProfileInfo
 import kotlinx.coroutines.flow.Flow
@@ -15,21 +14,21 @@ interface UserRepository {
 
     fun updateProfileImage(
         profileImage: String,
-        onError: (WithPeaceError) -> Unit,
+        onError: suspend (WithPeaceError) -> Unit,
     ): Flow<Unit>
 
     fun updateNickname(
         nickname: String,
-        onError: (WithPeaceError) -> Unit,
+        onError: suspend (WithPeaceError) -> Unit,
     ): Flow<Unit>
 
     fun updateProfile(
         nickname: String, profileImage: String,
-        onError: (WithPeaceError) -> Unit,
+        onError: suspend (WithPeaceError) -> Unit,
     ): Flow<Unit>
 
     fun verifyNicknameDuplicated(
         nickname: Nickname,
-        onError: (WithPeaceError) -> Unit,
+        onError: suspend (WithPeaceError) -> Unit,
     ): Flow<Unit>
 }
diff --git a/core/domain/src/main/java/com/withpeace/withpeace/core/domain/usecase/UpdateProfileUseCase.kt b/core/domain/src/main/java/com/withpeace/withpeace/core/domain/usecase/UpdateProfileUseCase.kt
index 7cb0d1ef..8831bdcc 100644
--- a/core/domain/src/main/java/com/withpeace/withpeace/core/domain/usecase/UpdateProfileUseCase.kt
+++ b/core/domain/src/main/java/com/withpeace/withpeace/core/domain/usecase/UpdateProfileUseCase.kt
@@ -13,7 +13,7 @@ class UpdateProfileUseCase @Inject constructor(
     operator fun invoke(
         beforeProfile: ChangingProfileInfo,
         afterProfile: ChangingProfileInfo,
-        onError: (WithPeaceError) -> Unit,
+        onError: suspend (WithPeaceError) -> Unit,
     ): Flow<Unit> {
         return when (ProfileChangingStatus.getStatus(beforeProfile, afterProfile)) {
             ProfileChangingStatus.AllChanging -> {
diff --git a/core/domain/src/main/java/com/withpeace/withpeace/core/domain/usecase/VerifyNicknameUseCase.kt b/core/domain/src/main/java/com/withpeace/withpeace/core/domain/usecase/VerifyNicknameUseCase.kt
index e4719dbc..d821b97d 100644
--- a/core/domain/src/main/java/com/withpeace/withpeace/core/domain/usecase/VerifyNicknameUseCase.kt
+++ b/core/domain/src/main/java/com/withpeace/withpeace/core/domain/usecase/VerifyNicknameUseCase.kt
@@ -10,10 +10,9 @@ import javax.inject.Inject
 class VerifyNicknameUseCase @Inject constructor(
     private val userRepository: UserRepository,
 ) {
-    operator fun invoke(nickname: String, onError: (WithPeaceError) -> Unit): Flow<Unit> {
+    operator fun invoke(nickname: String, onError: suspend (WithPeaceError) -> Unit): Flow<Unit> {
         if (!Nickname.verifyNickname(nickname)) {
-            onError(WithPeaceError.GeneralError(code = 1))
-            return flow {  }
+            return flow { onError(WithPeaceError.GeneralError(code = 1)) }
         }
         return userRepository.verifyNicknameDuplicated(Nickname.create(nickname), onError = onError)
     }
diff --git a/feature/profileeditor/src/main/java/com/app/profileeditor/ProfileEditorViewModel.kt b/feature/profileeditor/src/main/java/com/app/profileeditor/ProfileEditorViewModel.kt
index f8f04b72..f132854c 100644
--- a/feature/profileeditor/src/main/java/com/app/profileeditor/ProfileEditorViewModel.kt
+++ b/feature/profileeditor/src/main/java/com/app/profileeditor/ProfileEditorViewModel.kt
@@ -84,7 +84,6 @@ class ProfileEditorViewModel @Inject constructor(
         viewModelScope.launch {
             verifyNicknameUseCase(
                 onError = { error ->
-                    this.launch {
                         _profileEditUiEvent.send(
                             when (error) {
                                 is WithPeaceError.GeneralError -> {
@@ -94,11 +93,9 @@ class ProfileEditorViewModel @Inject constructor(
                                         else -> ProfileEditUiEvent.ShowFailure
                                     }
                                 }
-
                                 else -> ProfileEditUiEvent.ShowFailure
                             },
                         )
-                    }
                 },
                 nickname = (profileEditUiState.value as ProfileEditUiState.Editing).profileInfo.nickname,
             ).collect {